WO2013109429A3 - Slot machining - Google Patents

Slot machining Download PDF

Info

Publication number
WO2013109429A3
WO2013109429A3 PCT/US2013/020624 US2013020624W WO2013109429A3 WO 2013109429 A3 WO2013109429 A3 WO 2013109429A3 US 2013020624 W US2013020624 W US 2013020624W WO 2013109429 A3 WO2013109429 A3 WO 2013109429A3
Authority
WO
WIPO (PCT)
Prior art keywords
bit
slot
precursor
passing
base
Prior art date
Application number
PCT/US2013/020624
Other languages
French (fr)
Other versions
WO2013109429A2 (en
Inventor
Changsheng Guo
Trevor S. Smith
Original Assignee
United Technologies Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corporation filed Critical United Technologies Corporation
Priority to EP13738146.3A priority Critical patent/EP2804717B1/en
Publication of WO2013109429A2 publication Critical patent/WO2013109429A2/en
Publication of WO2013109429A3 publication Critical patent/WO2013109429A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/006—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/28—Grooving workpieces
    • B23C3/30—Milling straight grooves, e.g. keyways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/58—Investigating machinability by cutting tools; Investigating the cutting ability of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/04—Milling with the axis of the cutter inclined to the surface being machined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/36—Production of grooves
    • B23C2220/366—Turbine blade grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/48—Methods of milling not otherwise provided for
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45147—Machining blade, airfoil
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y10T29/49996—Successive distinct removal operations

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Drilling And Boring (AREA)
  • Milling Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A method for cutting a blade root retention slot (24) in a turbine engine disk element (20) includes forming a precursor slot (24') in the element. The precursor slot (24') has first (40A, 41A, 42A, 44A, 45A) and second (40B, 41B, 42B, 44B, 45B) sidewalls and a base (46). A rotating bit (120) is passed through the precursor slot (24') to machine the base. The bit rotates about an axis (520) off normal to a direction (512) of passing. A cutting performance of the rotating bit (120) is modeled reflecting a chip trapping intensity parameter (cp) and a heat intensity parameter (HI). At least one parameter of the bit and its passing is selected so as to avoid tool loading where removed chips/swafs stick onto the bit.
PCT/US2013/020624 2012-01-18 2013-01-08 Slot machining WO2013109429A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13738146.3A EP2804717B1 (en) 2012-01-18 2013-01-08 Slot machining

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/352,764 US9718154B2 (en) 2012-01-18 2012-01-18 Slot machining
US13/352,764 2012-01-18

Publications (2)

Publication Number Publication Date
WO2013109429A2 WO2013109429A2 (en) 2013-07-25
WO2013109429A3 true WO2013109429A3 (en) 2014-11-06

Family

ID=48780288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/020624 WO2013109429A2 (en) 2012-01-18 2013-01-08 Slot machining

Country Status (3)

Country Link
US (1) US9718154B2 (en)
EP (1) EP2804717B1 (en)
WO (1) WO2013109429A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110640409A (en) * 2019-08-29 2020-01-03 西北机电工程研究所 Method for machining inner centering spline shaft by adopting common end mill

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140013599A1 (en) * 2012-07-11 2014-01-16 Pratt & Whitney Method of Manufacturing Fan Blade Shields
CN102941443A (en) * 2012-11-05 2013-02-27 宁波镇明转轴有限公司 Manufacture method of drive screw
CN103659600B (en) * 2013-12-09 2016-03-02 上海机床厂有限公司 Plane special-shaped non-circular grinding contour outline control method
CN106660143B (en) * 2015-07-24 2018-04-06 山崎马扎克公司 The processing method of ditch portion
JP6696821B2 (en) * 2016-04-26 2020-05-20 Dmg森精機株式会社 Machine Tools
CN108515217B (en) * 2018-04-09 2019-05-31 吉林大学 A kind of ball-end milling free form surface surface topography emulation mode
CN109047869B (en) * 2018-07-23 2020-06-05 东方电气(广州)重型机器有限公司 Semi-closed space thread machining method
CN110756872B (en) * 2019-11-13 2021-12-21 中国航发动力股份有限公司 Method for processing throttling groove with gradually-changed section
CN111456815A (en) * 2020-04-30 2020-07-28 上海建桥学院 Wheel disc assembly and five-axis machining method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377116A (en) * 1991-07-01 1994-12-27 Valenite Inc. Method and system for designing a cutting tool
US5689062A (en) * 1996-01-11 1997-11-18 University Of Kentucky Research Foundation Method of assessing tool-life in grooved tools
US5691909A (en) * 1995-12-29 1997-11-25 Western Atlas Method of virtual machining to predict the accuracy of part to be made with machine tools
US5801963A (en) * 1995-11-13 1998-09-01 The University Of Kentucky Research Foundation Method of predicting optimum machining conditions
US20050015983A1 (en) * 2003-07-24 2005-01-27 Mantel Blake M. Slot machining
US20090287458A1 (en) * 2008-05-14 2009-11-19 Tahany Ibrahim El-Wardany Broach tool design methodology and systems

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Publication number Priority date Publication date Assignee Title
US1614558A (en) * 1921-09-30 1927-01-18 Westinghouse Electric & Mfg Co Method of cutting elemental slots in cylindrical bodies
US4707793A (en) * 1985-09-30 1987-11-17 The Boeing Company Method of determining feed rate and cutting speed for cutting metal and of predicting cutting effects
US4833617A (en) * 1987-08-14 1989-05-23 General Electric Company Solid modeling based adaptive feedrate control for NC machining
US5430936A (en) * 1993-12-27 1995-07-11 United Technologies Corporation Method for making gas turbine engine blade attachment slots
US6449529B1 (en) 1999-01-05 2002-09-10 Henryk Oleksy Process for contour machining of metal blocks
ITTV20010121A1 (en) * 2001-09-07 2003-03-07 Sinico Spa CONSTANT CHIP VOLUME CUTTING SYSTEM FOR MACHINE TOOLS
GB0209543D0 (en) * 2002-04-26 2002-06-05 Rolls Royce Plc The automation and optimisation of the design of a component
US6883234B2 (en) * 2002-10-07 2005-04-26 United Technologies Corporation Process for machining axial blade slots in turbine disks for jet engines
DE10346589A1 (en) 2003-10-07 2005-05-12 P&L Gmbh & Co Kg Method for automatically optimizing material removal during machining of a workpiece
JP4940729B2 (en) * 2006-03-31 2012-05-30 株式会社ジェイテクト Workpiece grinding method and grinding apparatus
US7933679B1 (en) * 2007-10-23 2011-04-26 Cessna Aircraft Company Method for analyzing and optimizing a machining process
JP5288836B2 (en) * 2008-02-29 2013-09-11 国立大学法人名古屋大学 Machine tool with chip disposal function
US20100114354A1 (en) * 2008-11-06 2010-05-06 The Regents Of The University Of Michigan Method for estimating immeasurable process variables during a series of discrete process cycles
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US8567059B2 (en) * 2009-07-10 2013-10-29 Pratt & Whitney Canada Corp. Process for forming a firtree slot in a disc of a rotor of a gas turbine engine
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377116A (en) * 1991-07-01 1994-12-27 Valenite Inc. Method and system for designing a cutting tool
US5801963A (en) * 1995-11-13 1998-09-01 The University Of Kentucky Research Foundation Method of predicting optimum machining conditions
US5691909A (en) * 1995-12-29 1997-11-25 Western Atlas Method of virtual machining to predict the accuracy of part to be made with machine tools
US5689062A (en) * 1996-01-11 1997-11-18 University Of Kentucky Research Foundation Method of assessing tool-life in grooved tools
US20050015983A1 (en) * 2003-07-24 2005-01-27 Mantel Blake M. Slot machining
US20090287458A1 (en) * 2008-05-14 2009-11-19 Tahany Ibrahim El-Wardany Broach tool design methodology and systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2804717A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110640409A (en) * 2019-08-29 2020-01-03 西北机电工程研究所 Method for machining inner centering spline shaft by adopting common end mill

Also Published As

Publication number Publication date
EP2804717A4 (en) 2015-10-21
WO2013109429A2 (en) 2013-07-25
EP2804717A2 (en) 2014-11-26
EP2804717B1 (en) 2017-03-08
US9718154B2 (en) 2017-08-01
US20130183888A1 (en) 2013-07-18

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